Spindle monitoring

Overview of the monitoring mechanisms for an NC spindle

• Dynamic monitoring (speed, acceleration) [Dynamic characteristics]
• Speed (rpm) monitoring
• Position monitoring [Axis position monitoring]
• Following error monitoring [Position lag monitoring]
• Time monitoring [FCT-A3]
• Monitoring the direction of rotation

Speed (rpm)

The P-AXIS-00217 (vb_prozent) parameter is used to define the actual speed as from which the nominal speed is deemed to have been reached.

The P-AXIS-00216 (vb_min_null) parameter defines the speed limit under which the zero speed is assumed.

Direction of rotation

If a preferred direction P-AXIS-00224 (vorz_richtung) and a direction of rotation P-AXIS-00031 (beweg_richt ) are specified, all commanded directions of rotation are checked for conformity with the preferred direction. If these do not agree, an error message is issued, and the error state is assumed.